Hi everyone! I've got a head-scratcher for you! (and I PROMISE to post the solution once she's fixed! :) :) )
My 1986 325e will start up on starter fluid, idle and rev like a dream, then die after about 10 seconds (once the starter fluid is burned off).
That tells me a few things:
--Good compression
--The engine is getting good spark
My next thought: is it fuel-related?
--both fuel pumps spin when the engine is cranking
--I disconnected the fuel line to the starter injector, and it fills up a glass with gasoline in just 2-3 seconds
My next thought: is it the computer, relay, or a fuse?
--I put in a new main relay
--I put in a new fuel pump relay
--No blown fuses anywhere
--I even swapped the Motronic computer above the glove box (0261200027)
--No obviously disconnected wires, frayed wires, corrosion, etc. Garage-kept car :)
Brand new, fully-charged Interstate battery.
Pretty good head-scratcher, huh!! My next question - could it be the two crankshaft position sensors? (mine are both on the transmission bell housing). Or maybe a camshaft sensor?
One last thing - the maintenance indicator Green/Yellow/Red lights stay on all the time, even when the key is off, but it has been doing that for years, so I don't think that is related.
Any thoughts would be INCREDIBLY helpful!!
Thank you!!
My 1986 325e will start up on starter fluid, idle and rev like a dream, then die after about 10 seconds (once the starter fluid is burned off).
That tells me a few things:
--Good compression
--The engine is getting good spark
My next thought: is it fuel-related?
--both fuel pumps spin when the engine is cranking
--I disconnected the fuel line to the starter injector, and it fills up a glass with gasoline in just 2-3 seconds
My next thought: is it the computer, relay, or a fuse?
--I put in a new main relay
--I put in a new fuel pump relay
--No blown fuses anywhere
--I even swapped the Motronic computer above the glove box (0261200027)
--No obviously disconnected wires, frayed wires, corrosion, etc. Garage-kept car :)
Brand new, fully-charged Interstate battery.
Pretty good head-scratcher, huh!! My next question - could it be the two crankshaft position sensors? (mine are both on the transmission bell housing). Or maybe a camshaft sensor?
One last thing - the maintenance indicator Green/Yellow/Red lights stay on all the time, even when the key is off, but it has been doing that for years, so I don't think that is related.
Any thoughts would be INCREDIBLY helpful!!
Thank you!!
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